The F-rank Adventurer, Who Was Supposed to Be Just a Helper, Accidentally Goes Viral for Blowing Away an S-rank Monster – It Seems the Home I've Been Living in Was an Unusually Powerful Dungeon Inhabited by the Strongest Species - Chapter 25

“Hey, hey! You’re doing something fun without me, aren’t you?”

Just as I was explaining how I use Ichigo the Phoenix for heating and how I manage during hot days, a mischievous voice and the sound of the basement door being roughly opened interrupted me.

The camera turned towards the entrance.

“Who’s that!?”
“A new character!?”
“A loli!?”

There stood a girl, wearing a black cardigan, with a stature of a late elementary schooler. Her eyes and hair were a clear blue, giving her an ethereal look. If my sister’s hair is glossy, this girl’s hair is silky.

The comment section erupted.

“A loli!?”
“Who is this loli?”
“Such beautiful light blue hair!”
“It’s shining!”

The girl simply replied, “Ew, creepy.”

“Hey, hey, they’re important viewers. You shouldn’t say that… wait, what?”

Her blunt remark was unexpected.

“Refreshing.”
“Love a loli with a foul mouth.”
“Out of the blue.”
“Kids can get away with it.”
“More insults, please!”

“What’s this reaction…”

Some viewers were concerned about her rude language, but surprisingly, many seemed to enjoy it.

Maybe high school me is too young to understand this.

“Anyway.”

I needed to sort out the situation.

“Welcome back. Had fun?”
“Yes! It was great!”
“That’s good. So, this is a stream—”
“I know! I saw it where I went!”

She jumped into the camera frame, ready to introduce herself.

“Hello, everyone down there!”
“Come on…”
“I am the idol of this house, ‘Blue Hawaii’!”

“Blue Hawaii!?”
“What a name!”
“Matches her look.”
“Did she just say ‘everyone down there’?”
“An idol?”
“So much information!”

“Uh, her ‘idol’ status is self-proclaimed, so don’t mind that.”
“Hey! You’re not supposed to say that!”
“I can’t just ignore it.”

“Self-proclaimed lol.”
“Not acknowledged by the host lol.”
“Admits it herself lol.”
“But cute.”
“Where have you been hiding!?”
“Such a character.”

Despite the harshness, she seemed to be accepted. Numerous questions came flying in.

“Who is Blue Hawaii?”

She grinned, pleased to be asked about herself.

“I’ll show you!”

Blue Hawaii flung off her black cardigan, revealing a cool summer outfit. However, her lower half was enveloped in a mysterious light.

“Look closely!”

As the light faded, beautiful light blue scales appeared, shimmering with moisture. She floated slightly above the ground.

“I am a ‘Siren’!”

“Whoa!”
“Siren!!”
“Siren has arrived!”
“A foul-mouthed loli siren is something else.”
“What a character.”
“So many attributes.”

The comment section was livelier than ever, and information about Sirens started pouring in.

“Sirens are S-rank monsters!”
“Top tier among marine creatures.”
“How is this house even real!?”

She pointed at the camera, pleased with herself.

“Remember me, Blue Hawaii!”

“Will do.”
“New favorite.”
“A godsend.”
“Got a new favorite.”
“Insult us more!”

Her introduction ended, and she was now known as Blue Hawaii, the Siren, one of the (residents?) of the basement.

But a Siren being an S-rank monster? I didn’t know that. I thought her claiming to be an “idol” and a “beautiful girl” was just her being boastful. I assumed “S-rank monster” was also self-proclaimed.

“What’s that doubtful look for?”
“Nothing…”

More questions for Blue Hawaii came in.

“Where were you, Blue Hawaii?”

“Vacationing in the deep sea.”

“Deep sea… vacation?”
“Don’t say it so casually!”
“Deep sea seems like a walk in the park for her.”
“Mind-blowing.”

The comment section was confused.

I’ve only recently learned how dangerous the deep sea is. Maybe it seemed light because Blue Hawaii treated it like a casual stroll.

Then, Blue Hawaii started fanning herself.

“Isn’t it hot in here?”
“Yeah, Ichigo warmed us up.”
“Boo!”
“Again with this roast bird?”
“Boo!?”
“Hey, hey.”

“Roast bird!?”
“Harsh lol.”
“Typical foul mouth.”

“I’ll cool it down!”

Blue Hawaii began forming a giant water bubble in front of her, like a huge soap bubble.

“Cool down!”

She released the bubble towards the ceiling. It burst upon impact, spreading a sudden coolness. This was her signature “Soap Bubble.”

“This is just right!”
“No, it’s cold.”
“Look, it’s pretty too!”
“Well, yeah…”

A small aurora appeared on the ceiling, a byproduct of the “Soap Bubble.”

“Aurora inside the house!?”

“Amazing!”
“Beautiful!”
“Can’t keep up lol.”

“See? People like it.”
“It’s nothing for me!”

The comment section was now buzzing with amazement and confusion.

“So, what do you do when it’s hot?”
“Oh, for that!”

Before I could explain, a mischievous voice interrupted.

“Hey, hey! Don’t have fun without me!”

Thus, when it’s hot, Blue Hawaii cools it down visually and physically.

If Ichigo serves as “heating,” then Blue Hawaii is like the “air conditioning.”

…But, as expected, this happens.

“Boo! Bobo!”
“What now, roast bird?”
“Bobo!”

Ichigo flaps her wings, seeking attention. I translated for her.

“She says she’s cold.”
“I don’t care! It’s better than being hot.”
“Bobo… bo!”

Displeased with the cold, Ichigo flew towards the ceiling, while Blue Hawaii hopped in the opposite direction. They’re ready to start their usual… thing.

“What’s starting?”
“Didn’t they argue about being hot and cold earlier?”
“Could it be…”

“Boo!”
“I’m ready for you! Ha!”
“Ah, here it goes.”

Ichigo releases a “Fire Breath” and Blue Hawaii counters with a wave of her “Soap Bubbles.” The heat and cold collide in the middle.

“Wow!”
“They collided!?”
“This is getting crazy!”
“An air conditioning battle!?”

Ichigo and Blue Hawaii are notorious for fighting over the environment.

They both prefer the basement, but they’re not really on bad terms. It’s just a slight incompatibility.

“It’s intense.”

With the room half hot and half cold, my right side feels warm while my left side is freezing.

“Wow!”
“Hoshi-kun, are you okay!?”
“Hoshi-kun!”

Amidst the chaos, they continue to stand their ground.

“You’re doing well!”
“Bobo!”

They both start gathering more energy.

“Uh-oh!”
“They’re charging up!”
“Are you okay!?”

“That’s enough.”

I clapped my hands sharply.

“──!”
“Bo──!?”

Immediately, both of them stopped.

“Uh?”

I’m not sure what they mean by a shockwave. I’ve always used this method to stop them.

Anyway, it’s best to stop them before any damage is done to the room.

“Don’t overdo it.”
“Boo…”
“Alright…”

“Looks like Hoshi-kun is still the boss.”
“Only Hoshi-kun can stop them.”
“They both look a bit sad.”

“But thanks to both of you, the stream was lively. Thank you.”
“……!”

Hearing my gratitude, they both looked pleased.

“Thank me!”
“Bobo!”
“Okay, now make up.”
“……”

They faced each other.

“You’re not bad either, roast─ Ichigo.”
“Bobo! Bo!”
“Good, good.”

They shook hands, looking slightly embarrassed. They get along fine, just with a bit of a rough dynamic.

Noticing the time, I realized it was the perfect moment to wrap up the stream.

“That’s all for today. Thank you for watching!”
“Bye!”
“Boo!”

“Bye!”
“Thanks for the stream!”
“Great ending.”
“Nice wrap-up.”
“Today’s stream was fun!”
“See you!”

With that, the stream, set in the “ordinary living space” of the basement, concluded successfully (?).

★

“So, why did Blue Hawaii come back?”

After ending the stream, I asked her while snacking in the living room.

“Is it bad that I came back?”
“No, but you said you wouldn’t return for a month.”
“Did I say that?”
“Yes, you did.”

Blue Hawaii answered while licking a water candy. She’s still such a child. Unlike me, who prefers pudding for a snack.

“I saw something strange.”
“Strange?”
“Yeah. Huge clusters of magical energy… like glowing hearts. Lots of monsters had them.”
“Hmm.”

What could that mean? Are the monsters undergoing some change?

“I thought I should report it. Might not mean anything, though.”
“Got it.”

Finishing her candy, Blue Hawaii went back downstairs, probably to play with Ichigo and Wataame again.

“But still…”

I pondered over Blue Hawaii’s story.

“What could those clusters of magical energy be?”